Image-Adaptive Spread Transform Dither Modulation Using Human Visual Model

2007 ◽  
pp. 913-923
Author(s):  
Xinshan Zhu
Keyword(s):  
Visual Model ◽  
Dither Modulation ◽  
Human Visual Model ◽  
Spread Transform Dither Modulation

Step-projection-based spread transform dither modulation

2011 ◽  
Vol 5 (3) ◽  
pp. 170 ◽  
Author(s):  
X. Li ◽  
J. Liu ◽  
J. Sun ◽  
X. Yang ◽  
W. Liu
Keyword(s):  
Dither Modulation ◽  
Spread Transform Dither Modulation

P-12: Display Image Quality Evaluation with Multi-Scale Human Visual Model

2001 ◽  
Vol 32 (1) ◽  
pp. 590
Author(s):  
Jen-Hung Yu ◽  
Yen-Chung Lin ◽  
Han-Ping D. Shieh ◽  
Ming-Jiun Liaw
Keyword(s):  
Image Quality ◽  
Quality Evaluation ◽  
Image Quality Evaluation ◽  
Visual Model ◽  
Multi Scale ◽  
Human Visual Model

Digital Video Watermarking and the Collusion Attack

2011 ◽  
pp. 67-83
Author(s):  
Robert Caldelli ◽  
Alessandro Piva
Keyword(s):  
Spread Spectrum ◽  
Digital Video ◽  
Video Watermarking ◽  
Collusion Attack ◽  
Collusion Attacks ◽  
Digital Video Watermarking ◽  
Dither Modulation ◽  
Temporal Frame ◽  
Spread Transform Dither Modulation

This chapter is devoted to the analysis of the collusion attack applied to current digital video watermarking algorithms. In particular, we analyze the effects of collusion attacks, with particular attention to the temporal frame averaging (TFA), applied to two basic watermarking systems like spread spectrum (SS) and spread transform dither modulation (STDM). The chapter describes the main drawbacks and advantages in using these two watermarking schemes and, above all, the fundamental issues to be taken into account to grant a certain level of robustness when a collusion attack is carried out by an attacker.

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